Hi Gene,
I have a K624i wthi MSR reticle and am very happy with it. It was my first scope purchase so I don't really have anything to compare it to. Rather than add more anecdotal and subjective experiences to the discussion I will point you towards the most extensive and scientific evaluation of various scopes I have come across. Hope you have some free time :-).
<http goes here://>precisionrifleblog.com/2014/07/01/tactical-scopes-field-test-overview-rifle-scope-line-up/
Cheers,
Oliver
P.S. It wouldn't let me post the plain URL

The PRI quiet control brake works well and isn't too annoying at the range.
http://www.midwayusa.com/product/2367125087/pri-muzzle-brake-quiet-control-5-8-24-thread-ar-10-lr-308
Pictures of the brake installed and size compared to original flash suppressor.
https://www.dropbox.com/sh/xe92fefgwb3fq4v/AAACLIMEIiLT6Zd8Ho-JUYiSa?dl=0#/

Hi Scott,
I went through the same thing with my Redding die set for .40 S&W. I called Redding and essentially got the same answer as in the FAQ - the carbide ring inside the die is there to size to top part of the case. Tech support's suggestion was to back off the die (in my case 1 1/2 turns out from contact with the shell plate) until there are no more 'rings' around the bottom of the case.
Redding does make a dual ring carbide sizer die for .40 S&W that should, theoretically, eliminate the problem.
http://www.redding-reloading.com/index.php?option=com_content&view=article&id=124:dual-ring-carbide-dies
Cheers,
Oliver